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The effects of agricultural waste water treatment on algal bioassay response | Bio-engineering aspects of agricultural drainage, San Joaquin Valley, California
1971
Ground water pollution in Arizona, California, Nevada and Utah
1971
Fuhriman, Dean K. | Barton, James R.
Investigations concerning probable impact of nitrilotriacetic acid on ground waters
1971
Dunlap, William J. | Cosby, Roger L. | McNabb, James F.
Infiltration rates and groundwater quality beneath cattle feedlots, Texas High Plains
1971
Miller, William D.
Detailed field and laboratory studies of five feedlots were conducted to determine field seepage rates and distributive geometry of infiltrated runoff. Practical field seepage rates at these sites ranged from 2 to 20 feet/year. Dispersal rates of ions in the groundwater zone varied from 45 to 400 feet/year. Nitrogen (NO₃, NO₂, NH₄, Org-N) and common chemical parameters (Ca, Mg, Na, K, Cl, SO₄, TDS, pH, and conductance) were determined in cores and groundwater samples; based on groundwater analyses from 80 Texas High Plains feedlots, rates of concentration of NO₃-N and Cl in groundwater beneath feedlots range from 0.07 to 0.4 p.p.m. per year, and average 0.17 p.p.m. per year.
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